JP3732357B2 - Liquid jet pump - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid jet pump, and more particularly, to a vertical pump type liquid jet pump that provides a feeling of relaxation and interest by generating sound during pumping.
[0002]
[Prior art]
For example, as shown in Japanese Utility Model Laid-Open No. 8-1173, the stem is erected from a cylindrical piston fitted into a cylinder that hangs into the container body by engaging the upper end with the container body neck and neck. There is known a liquid ejection pump in which a peripheral wall hanging from a pressing head with a nozzle is fitted to a portion, and liquid in the container is sucked into a cylinder and ejected from the nozzle by the vertical movement of the pressing head.
[0003]
[Problems to be solved by the invention]
Housework and cleaning using a liquid jet pump may be tedious and tedious, and it has been desired that some kind of contrivance be made so that the use of the liquid jet pump may be interesting.
In addition, the cylinder is formed with an intake hole for introducing air into the container when negative pressure is generated in the container. The intake hole is blocked by a cylindrical piston when the pressing head is not pressed down. However, when pushed down, the cylindrical piston descends to open the intake hole.
Accordingly, when the container body is not used, the liquid in the container does not flow into the cylinder even when the container body is tilted. However, when the container body is tilted during use, the liquid may leak out of the container through the cylinder.
[0004]
Accordingly, the inventions of claims 1 and 3 are provided such that a tubular whistle is provided on the head with a nozzle, and the tubular whistle is communicated with a large-diameter cylinder so that the tubular whistle sounds when the head is pushed down. It is intended to give a feeling of feeling and relaxation.
[0005]
According to the second aspect of the present invention, by providing an air intake valve, it is intended to prevent the liquid in the container from leaking outside the container regardless of whether it is used or not.
[0006]
[Means for Solving the Problems]
As a first means, a container body 1 that stands up the mouth and neck,
A mounting cylinder 2 that hangs the peripheral wall 3 fitted to the outer surface of the mouth-and-neck part from the outer periphery of the inward flange-shaped top wall 4;
A cylinder member 6 in which a large-diameter cylinder 8 is erected from an upper end of a small-diameter cylinder 10 suspended in the container body via an outward flange-like wall 9 and the upper-end portion of the large-diameter cylinder is engaged with an upper end surface of a mouth-neck portion. When,
A stem 23 is erected from a small-diameter cylindrical piston 22 fitted into the small-diameter cylinder 10, and an inner cylinder 26 that hangs down from a lower surface of a head 24 with a nozzle is connected to the upper inner surface of the stem. The central portion of the large-diameter cylindrical piston 27 fitted into the large-diameter cylinder 8 is fitted to the upper outer surface of the stem 23, and the central upper portion of the large-diameter cylindrical piston is The inner cylinder 26 is fitted to the lower inner surface of the outer cylinder 29 suspended from the lower surface of the head 24 so as to be movable up and down in a small stroke and in a watertight manner, and the lower end of the stop cylinder 5 hanging from the mounting cylinder top wall 4 has a large diameter. The upper end of the cylindrical piston 27, and the lower end of the center of the large-diameter cylindrical piston is pressed against the upper surface of the seat 31 attached to the middle portion of the stem 23;
The actuating member has a horizontal hole 35 formed in the rear portion of the nozzle hole of the head portion 24 with the nozzle to fit the tubular whistle 36, and the tubular whistle is provided between the inner and outer tubes that are suspended from the head portion 24. A compressed air outflow passage 38 for blowing a whistle is formed by communicating with passages 37 provided between the inner surfaces of the large-diameter cylindrical piston central portion 27a and the head outer cylinder 29 and the outer surface of the stem 23 via the gap S. did.
[0007]
As a second means, the elastic valve plate 42 is expanded upward and outward from the lower outer surface of the fitting cylinder 41 having the first means and the upper part of the stopping cylinder 5 fitted into the lower outer surface of the stop cylinder 5 so that it cannot be pulled out. The air suction valve 40 is formed such that its upper end is brought into water-tight contact with the upper inner surface of the large-diameter cylinder 8 and the valve plate 42 can be separated from the inner surface of the large-diameter cylinder 8 inward when negative pressure is generated in the container. Have
The air intake valve 40 has a valve-closing position that prevents liquid in the container from flowing into the large-diameter cylinder 8 via the communication gap 13 between the upper end surface of the large-diameter cylinder 8 and the lower surface of the mounting cylinder top wall 4. A valve opening position for introducing air into the container body through the large-diameter cylinder 8 and the communication gap 13 when the container body is under negative pressure.
As the third means, the first or second means is provided, and the head 24 with the nozzle is formed in the shape of an animal that makes the sound of the flute 36 appear.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a liquid jet pump according to the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a container body that stands up the mouth and neck.
[0009]
2 is a mounting cylinder in which an inward flange-like top wall 4 is attached to the upper end of the peripheral wall 3 fitted to the outer surface of the container neck of the container body. A stop cylinder 5 having an inner and outer double cylindrical shape and a longer outer cylinder part than the inner cylinder part is suspended from the peripheral part.
[0010]
A cylinder member 6 has an outward flange 7 sandwiched between the upper end surface of the container body neck and neck and the outer peripheral portion of the top wall 4 via packing at the upper end of the large diameter cylinder 8, and the lower end of the large diameter cylinder A small diameter cylinder 10 is suspended from the inner periphery of the inwardly flanged bottom wall 9, a suction pipe 11 is suspended from the small diameter cylinder to the bottom of the container body, and a communication hole 12 is formed at the rear part of the outward flange 7. Notch portions are respectively formed in the packing rear portion, and these are communicated with a communication gap 13 formed between the upper end surface of the large-diameter cylinder 8 and the flange-like top wall 4.
[0011]
21 is an actuating member, and a stem 23 is erected from a small-diameter cylindrical piston 22 fitted into the small-diameter cylinder 10, and is suspended from the lower surface of the head 24 with the nozzle to the nozzle 25 on the inner surface of the upper end portion of the stem. The inner cylinder 26 to be fitted is fitted.
In addition, as shown in FIG. 3, it is preferable to form the head part 24 with a nozzle in the shape of the animal which makes the tone of the flute 36 sound.
Further, a base tube portion 27a is provided in the center of the large diameter cylindrical piston 27 fitted into the large diameter cylinder 8, and the base tube portion is fitted to the outer surface of the intermediate portion of the stem 23 so as to be vertically movable. In addition, the upper part of the base cylinder part 27a surrounds the inner cylinder 26 and can be moved up and down by a small stroke to the lower inner surface of the inner cylinder part of the inner / outer double cylinder-shaped outer cylinder 29 suspended from the lower surface of the head 24 and is watertight. To fit.
Further, the stem 23 is urged upward by a coil spring 30 provided in the small-diameter cylinder 10, and the upper urging causes the lower end surface of the inner cylinder portion of the stop cylinder 5 hanging from the top wall 4 of the mounting cylinder to be a large-diameter cylindrical piston. 27, and the lower end surface of the base tube portion 27a is brought into pressure contact with the upper surface of the receiving seat 31 attached to the outer surface of the intermediate portion of the stem 23.
[0012]
In the illustrated example, the flange-like wall 27b between the base cylindrical portion 27a of the large-diameter cylindrical piston 27 and the outer peripheral cylindrical portion 27c has a central portion as an upright cylindrical portion and a flange that is in contact with the base cylindrical portion 27a. A plurality of outside air intake valve holes 32 are formed in the wall portion, and a synthetic resin cylinder portion 33 is airtightly fitted to the lower outer surface of the base cylinder portion 27a. The outer flange-like elastic thin plate 32a is protruded outwardly, and the outer peripheral edge of the elastic thin plate is brought into pressure contact with the lower surface of the flange-like wall 27b outside the external air intake valve hole 32, thereby forming the external air intake valve 34. Yes.
[0013]
Further, the actuating member 21 has a horizontal hole 35 formed in the rear portion of the nozzle 25 of the head portion 24 with the nozzle so as to fit the tubular whistle 36, and the inner whistle 26 is suspended from the head portion 24. A compressed air outflow passage 38 for blowing a whistle is formed by communicating with a passage 37 provided between the inner surface of the base tube portion 27a and the outer tube 29 and the outer surface of the stem 23 through a gap S between the outer tube 29 and the outer tube 29. To do.
[0014]
Reference numeral 40 denotes an air intake valve, which expands the elastic valve plate 42 upward and outward from the lower outer surface of the fitting cylinder 41 in which the upper part is fitted so as not to be pulled out to the lower outer surface of the outer cylinder portion of the stop cylinder 5. The upper end portion is brought into watertight contact with the inner surface of the upper end portion of the large-diameter cylinder 8 and the lower portion of the elastic cylinder 43 suspended from the lower inner surface of the fitting cylinder 41 via the inward flange is surrounded by the flange-like wall 27b of the large-diameter cylindrical piston 27. Fit to the middle part of the surface.
[0015]
An air discharge valve 45 is formed by the lower end surface of the base tube portion 27 a and the upper surface of the seat 31, and a liquid stop valve 46 is provided in the stem 23.
In the illustrated example, the small-diameter cylindrical piston 22 and the stem 23 are separately provided, and the small-diameter cylindrical piston 22 having the small-diameter cylindrical piston 22 at the lower end of the cylindrical portion 47 is fitted to the lower inner surface of the stem 23. Further, an engaging protrusion 49 is provided around the inner surface of the upper end portion of the cylindrical portion 47.
In addition, an engagement protrusion is provided on the inner surface of the intermediate portion of the engagement upright plate 50 that is vertically provided on the lower inner surface of the small-diameter cylinder 10, and is fitted between the engagement upright plates so as to be movable up and down. A rod 52 having a plurality of children 51 on the lower outer surface is inserted into the small-diameter cylinder 10 and the upper portion of the rod is loosely fitted into the cylindrical member 48 with a small-diameter piston.
[0016]
Further, the upper end portion of the rod 52 is formed as a hemispherical large-diameter portion 53 and its outer surface is water-tightly engaged with the inner surface of the engaging protrusion 49 to form a liquid leakage prevention valve 54. Further, the rod 52 is loosely inserted so that the compression coil spring 30 is placed between the lower portion of the small diameter cylinder 10 and the small diameter cylindrical piston 22 and the lower end of the spring is placed on the engagement step portion of the engagement upright plate 50. The actuating member 21 is urged upward via the small-diameter cylindrical piston 22, and the upper urging urges the rod via the engaging protrusion 49, and the engaging protrusion 51 is the lower end surface of the coil spring 30. It is pulled up to a state where it is pressed.
Note that the liquid leakage prevention valve 54 formed by the large-diameter portion 53 and the engaging protrusion 49 is closed in a state where the operating member 21 is pushed up to the upper limit. The internal liquid does not leak into the upper portion of the stem 23.
[0017]
Next, the operation of this embodiment will be described.
When the nozzle-equipped head 24 is pushed down, the small diameter cylindrical piston 22 is pushed down through the stem 23. Then, the piston pushes down the rod 52 via the compression coil spring 30 to open the liquid leakage prevention valve 54 and ejects the liquid in the small diameter cylinder 10 from the nozzle 25 via the liquid stop valve 46.
[0018]
On the other hand, the stem 23 descends in synchronism with the head 24 by pushing down the head portion 24 with the nozzle, but the base tube portion 27a can move up and down by a small stroke with respect to the outer tube 29. There is a time difference between 27a and the stem 23 at the start of the descent, and the base tube portion 27a starts descent with a slight delay from the stem 23. For this reason, the seat 31 is separated downward from the base tube portion 27a, and the air discharge valve 45 is opened. Then, as shown in FIG. 2, the compressed air in the large-diameter cylinder 8 flows into the tubular whistle 36 through the compressed air outflow passage 38, thereby blowing the tubular whistle 36.
The pipe flute 36 generates a tone imaged from the shape of the animal of the head 24 with the nozzle.
[0019]
In contrast to the above, when the head portion 24 with the nozzle starts to rise, the stem 23 rises in synchronization with the head portion, but the base tube portion 27a holds the stop state during the stroke, so that the seat 31 is the base tube portion. The air discharge valve 45 is closed by coming into contact with 27a.
On the other hand, since the inside of the large-diameter cylinder 8 becomes negative pressure due to the rise of the head 24, the outward flange-like elastic thin plate 32a is separated from the lower surface of the flange-like wall 27b, and the outside air intake valve 34 is opened to enter the large-diameter cylinder 8. Air is introduced.
[0020]
Next, the air intake valve 40 will be described. Since the valve is in contact with the inner surface of the large-diameter cylinder 8, the liquid in the container that has flowed into the large-diameter cylinder 8 through the communication gap 13 is connected to the fitting cylinder 41. It is stored in the gap with the elastic valve plate 42, and therefore does not leak to the outside through the gap between the inner periphery of the flange-like top wall 4 and the outer cylinder 29.
On the other hand, when the head 24 with the nozzle starts to rise after the liquid is ejected and the inside of the container becomes negative pressure, the elastic valve plate 42 is separated from the large-diameter cylinder 8 and the inner circumference of the flange-like top wall 4 and the outer cylinder 29 are separated. The air that has entered through the gap can flow into the container body through the communication gap 13, and therefore the container body is not recessed due to negative pressure.
[0021]
【The invention's effect】
According to the first and second aspects of the present invention, since the tubular whistle is provided in the head with the nozzle and the tubular whistle is communicated into the large-diameter cylinder through the compressed air outflow path, the head with the nozzle is pushed down. Compressed air can flow into the flute and blow the flute, thus providing a sense of relaxation and interest during pumping, which eliminates the monotony and boredom associated with housework, etc. .
[0022]
According to the second aspect of the present invention, since the air suction valve is interposed between the stop cylinder and the large diameter cylinder, leakage of the liquid in the container to the outside can be prevented.
In addition, since the air intake valve can be opened when the negative pressure in the container is reached, it is possible to introduce outside air into the container through the communication gap when the negative pressure is reached.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a liquid ejection pump according to the present invention in a state where an operating member is located at an upper limit.
FIG. 2 is a cross-sectional view showing a state where the operating member is located at the lower limit.
FIG. 3 is a perspective view of a pressing head with a nozzle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container body 2 Mounting cylinder 3 Perimeter wall 4 Inward flange-shaped top wall 5 Stop cylinder 6 Cylinder member 8 Large diameter cylinder 9 Inward flange-shaped top wall 10 Small diameter cylinder 13 Communication gap 21 Actuating member 22 Small diameter cylindrical piston 23 Stem 24 Nozzle head 25 Nozzle 26 Inner cylinder 27 Large diameter cylindrical piston 27a Base cylinder part 29 Outer cylinder 35 Horizontal hole 36 Flute 37 Passage 38 Compressed air outflow path 40 Air intake valve 41 Fitting cylinder 42 Elastic valve plate S Gap

Claims (3)

A container body 1 that stands up the mouth and neck;
A mounting cylinder 2 that hangs the peripheral wall 3 fitted to the outer surface of the mouth-and-neck part from the outer periphery of the inward flange-shaped top wall 4;
A cylinder member 6 in which a large-diameter cylinder 8 is erected from an upper end of a small-diameter cylinder 10 suspended in the container body via an outward flange-like wall 9 and the upper-end portion of the large-diameter cylinder is engaged with an upper end surface of a mouth-neck portion. When,
A stem 23 is erected from a small-diameter cylindrical piston 22 fitted into the small-diameter cylinder 10, and an inner cylinder 26 that hangs down from a lower surface of a head 24 with a nozzle is connected to the upper inner surface of the stem. The central portion of the large-diameter cylindrical piston 27 fitted into the large-diameter cylinder 8 is fitted to the upper outer surface of the stem 23, and the central upper portion of the large-diameter cylindrical piston is The inner cylinder 26 is fitted to the lower inner surface of the outer cylinder 29 suspended from the lower surface of the head 24 so as to be movable up and down in a small stroke and in a watertight manner, and the lower end of the stop cylinder 5 hanging from the mounting cylinder top wall 4 has a large diameter. The upper end of the cylindrical piston 27, and the lower end of the center of the large-diameter cylindrical piston is pressed against the upper surface of the seat 31 attached to the middle portion of the stem 23;
The actuating member has a horizontal hole 35 formed in the rear portion of the nozzle hole of the head portion 24 with the nozzle to fit the tubular whistle 36, and the tubular whistle is provided between the inner and outer tubes that are suspended from the head portion 24. A compressed air outflow passage 38 for blowing a whistle is formed by communicating with passages 37 provided between the inner surfaces of the large-diameter cylindrical piston central portion 27a and the head outer cylinder 29 and the outer surface of the stem 23 via the gap S. A liquid jet pump characterized by that. The elastic valve plate 42 is expanded upward and outward from the lower outer surface of the fitting cylinder 41 in which the upper part is fitted so that it cannot be pulled out to the lower outer surface of the stop cylinder 5, and the upper end of the elastic valve plate 42 is watertight to the upper inner surface of the large cylinder 8. And an air intake valve 40 formed so that the valve plate 42 can be separated inward from the inner surface of the large-diameter cylinder 8 when the negative pressure in the container is reduced,
The air intake valve 40 has a valve-closing position that prevents liquid in the container from flowing into the large-diameter cylinder 8 via the communication gap 13 between the upper end surface of the large-diameter cylinder 8 and the lower surface of the mounting cylinder top wall 4. The liquid jet pump according to claim 1, further comprising a valve opening position for introducing air into the container body through the large-diameter cylinder 8 and the communication gap 13 when the container body is negatively pressured. The liquid jet pump according to claim 1 or 2, wherein the nozzle-equipped head (24) is formed in the shape of an animal that makes the sound of the flute (36) sound.

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